Abstract: The present invention provides a vortex generator that in one embodiment includes an apex having a first width; a rear face having a second width being greater than the first width; a first and second sidewall each extending from the first width of the apex to the second width of the rear face, wherein at least a portion of each of the first and second sidewall have a peak including a convex surface; and a concave work surface positioned between the peak of the first and the second sidewall, wherein the concave work surface has an intake at the apex and an outlet at the rear face. In another embodiment, the exterior faces of the sidewalls include a planar surface.